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Durbin Industrial Valve

Dual Angle Valve Series

Please contact us for more information at Phone: 330.724.9968 Email: [email protected] Website: www.durbinvalve.com

Overview: The Durbin Variable Orifice Drain Valve (DV) is designed to provide the user with a customizable three position valve. The DV can be fully closed, fully open, and have a preset partial open position to create a controlled "leak" through the valve. This unique design allows the user to accomplish with one single valve what previously took two valves and possibly an orifice plate. This valve's angle-body design allows for improved flow efficiency over traditional globe-style valves when quick evacuation is required.

Materials of Construction: The wetted components are constructed entirely from corrosion-resistant materials. The valve body, actuating stem and seat are all constructed from stainless steel. The valve seal is made from a durable thermoplastic that withstands high temperatures and extreme process conditions. Packing consists of a strong PTFE material. Powder-coated spring and lids finish off this durable product offering to give an exceptional service life.

Application: The DV is designed to withstand the toughest environments. Typically, this valve is used on the drain side or downstream side of a vessel where high velocity evacuations are the normal service application. This angled design is superior in allowing any foreign material to exit the valve rather than getting lodged in the valve body, as is the case with traditional up-and-over globe-style valves.

Features:

Valve Type: Angle Globe

Function: 2-way adjustable orifice drain

Action: Normally Open

Actuation: Dual Pneumatic

Pilot Range: 35-40 psi (2.4-2.8 bar)

Sizes: ¾” -1½” (DN 20 to DN 40)

Pressure Ratings: Up to 500 psi (34 bar) ASME Class 300

Temperature Ratings: -40°F to 450°F (-40°C to 231°C)

Connection Style: Threaded (NPT/BSPT) & Flanged (B16.5)

Seat Type: Soft Seat

Leakage Rate: ANSI/FCI 70-2 class VI

Cv: Maximum of 45

Media: Most process fluid types; gas, liquids and steam


VARIABLE ORIFICE ANGLE DRAIN OPERATING SEQUENCE


NPT VALVE DIMENSIONS

A B C D

IN 4.38 1.39 11.88 11.78

mm 111.0 35.0 302.0 209.0

IN 4.38 1.39 12.98 12.89

mm 111.0 35.0 330.0 327.0

IN 4.38 1.39 12.98 12.89

mm 111.0 35.0 330.0 327.0

IN 5.95 1.65 13.90 14.39

mm 151.0 42.0 353.0 366.0DV50

ITEM

DV20

DV30

DV40


FLANGED VALVE DIMENSIONS

A B C D E F

IN 15.38 2.44 11.50 15.97 9.50 4.88

mm 391.0 62.0 292.0 406.0 241.0 124.0

IN 19.71 3.06 12.26 18.83 9.50 6.12

mm 501.0 78.0 311.0 478.0 241.0 156.0

ITEM

DV30F

DV50F


VARIABLE ORIFICE ANGLE DRAIN PARTS LIST


VARIABLE ORIFICE ANGLE DRAIN PARTS LIST

VALVE NUMBER DV20 DV30 DV40 DV50

Cv RATING Cv 26 Cv 28 Cv 32 Cv 45

ITEM DESCRIPTION PART # PART # PART # PART #

1 LID 293‐023D2R C293‐30D2R C293‐30D2R C293‐030D2R

2* UPPER DIAPHRAGM C333‐053‐A DV‐051 DV‐051 DV‐051

3 SPACER RING DV333‐AL DV533‐AL DV533‐AL DV533‐AL

4* LOWER DIAPHRAGM C333‐053D C333‐051D C333‐051D C333‐051D

5 RING C893‐015D‐SS C893‐022D‐SS C893‐022D‐SS C893‐022D‐SS

6 LOCK WASHER H175‐21 H175‐21 H175‐21 H175‐21

7 HEX BOLT 3/8 H096‐55 H096‐50 H096‐50 H096‐50

8 YOKE DV258‐SS DV58‐SS DV58‐SS DV58‐SS

9 SPACER YOKE DV315 DV315

10 PACKING GLAND DV259‐SS DV259‐SS DV259‐SS DV59‐SS

11* GASKET C383‐074D C383‐074D C383‐074D C383‐028D

12 PACKING GLAND BUSHING DV522 DV522 DV522 DV522

13 RETAINING RING H090‐19 H090‐19 H090‐19 H090‐19

14 STEM DV211 DV311 DV311 DV511

15 DISK WASHER DV212 DV312 DV312 DV512

16* SEAL DV223 DV323 DV323 DV513

17 STEM NUT DV214 DV314 DV314 DV514

18 BODY DV234‐SS DV334‐SS DV434‐SS DV534‐SS

19 HEX JAM 1/2 DV517 DV517 DV517 DV517

20 UPPPER PISTON DV216‐SS DV516‐SS DV516‐SS DV516‐SS

21 ORING H135‐13 H135‐13 H135‐13 H135‐13

22 LID BUSHING DV526 DV526 DV526 DV526

23 RETAINING RING H090‐19 H090‐19 H090‐19 H090‐19

24 HEX JAM 3/4 DV519 DV519 DV519 DV519

25 TOP WASHER DV520 DV520 DV520 DV520

26 HEX BOLT 1/4 H096‐60 H096‐60 H096‐60 H096‐60

27 PISTON DV221‐IC C783‐081D‐AL C783‐081D‐AL C783‐081D‐AL

28 SPRING RET C883‐321D C883‐321D C883‐521D

29 HEX JAM 5/16 C133‐008D C133‐008D C133‐008D C133‐008D

30 HEX NUT 1/4 H060‐03 H060‐03 H060‐03 H060‐03

31 NO SPRING D293‐069DR D293‐070DR D293‐070DR D293‐300DR

32 PACKING NUT BUSHING VP524 VP524 VP524 VP524

33 PACKING NUT C853‐092D C853‐092D C853‐092D C853‐092D

34 PACKING NUT ASSY C853‐090D C853‐090D C853‐090D C853‐090D

35 YOKE NUT DV231‐SS DV231‐SS DV231‐SS DV531‐SS

36* BLACK PACKER C683‐070D C683‐070D C683‐070D C683‐070D

37* WHITE PACKER C683‐069D C683‐069D C683‐069D C683‐069D

38 PACKER SPREADER C713‐012D C713‐012D C713‐012D C713‐012D

39 PACKING SPRING D293‐104Y D293‐104Y D293‐104Y D293‐104Y

40 PACKING KIT C242‐015D C242‐015D C242‐015D C242‐015D

41 TOOTH WASHER H177‐05 H177‐05 H177‐05 H177‐05

18‐F FLANGED BODY DV334F‐SW DV534F‐SW

VARIABLE ORIFICE DRAIN VALVE NPT

VARIABLE ORIFICE ANGLE DRAIN VALVE SIZING CHAR


ORDERING INFORMATION

DV

20 3/4" N NPT ANSI DIN JIS

30 1" B BSP 1 1/2" DN15 15

40 1 1/4" A ANSI(300#) 2 3/4" DN20 20

50 1 1/2" D DIN(PN40) 3 1" DN25 25

J JIS(20K) 4 1 1/2" DN40 40

Example: DV30N = 1” with NPT Threaded Ports

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